<template>
    <div>
        <!-- 面包屑区域 -->
        <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 视图卡片区域 -->
        <el-card >
            <!-- 搜索输入框区域 -->
            <el-row :gutter="20">
                <el-col :span="8">
                        <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                        </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary"  @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 表单区域 -->
            <el-table :data="userList" border stripe>
                <!-- 数据区域 -->
                <el-table-column type="index"></el-table-column>
                <el-table-column prop="username" label="姓名"></el-table-column>
                <el-table-column prop="email" label="邮箱"></el-table-column>
                <el-table-column prop="mobile" label="电话"></el-table-column>
                <el-table-column prop="role_name" label="角色"></el-table-column>
                <el-table-column label="状态" prop="mg_state">
                    <!-- 作用域插槽 -->
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStatusChanged(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180">
                    <template slot-scope="scope">
                        <!-- 修改按钮 -->
                        <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"> 
                        </el-button>
                        <!-- 删除按钮 -->
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)">

                        </el-button>
                        <!-- 分配角色按钮 -->
                         <el-tooltip effect="dark" content="角色配置" placement="top" :enterable="false">
                             <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
             <!-- 分页区域 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[1, 2, 5, 10]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>
        </el-card>
       
        <!-- 添加用户的对话框 -->
        <el-dialog
            title="添加用户"
            :visible.sync="addDialogVisible"
            width="50%"
            @close = "addDialogClose"
            >

            <!-- 内容主题区域 -->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="80px" >
                <el-form-item label="用户名称" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                 <el-form-item label="用户密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                 <el-form-item label="用户邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                 <el-form-item label="用户电话" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>


        <!-- 修改用户对话框 -->
        <el-dialog
            title="修改用户"
            :visible.sync="editDialogVisible"
            width="50%"
            @close="editDialogClose"
            >

            <!-- 内容主题区域 -->
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="80px" >
                <el-form-item label="修改用户" prop="username">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                 <el-form-item label="修改邮箱" prop="email">
                    <el-input v-model="editForm.email" ></el-input>
                </el-form-item>
                 <el-form-item label="修改手机" prop="mobile">
                    <el-input v-model="editForm.mobile" ></el-input>
                </el-form-item>
            </el-form>

            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="eidtUserInfo">确 定</el-button>
            </span>
        </el-dialog>

        <!-- 分配角色对话框 -->
        <el-dialog
        title="分配角色"
        :visible.sync="setRoleDialogVisible"
        width="50%" @close="setDialogVisibleClosed"
        >

            <!-- 主题内容区域 -->
            <div>
                <p>当前用户：{{userInfo.username}}</p>
                <p>当前的角色：{{userInfo.role_name}}</p>
                <p>分配的角色：
                    <!-- select选择器 -->
                    <el-select v-model="selectedRoleId" placeholder="请选择">
                        <el-option
                        v-for="item in rolesList"
                        :key="item.id"
                        :label="item.roleName"
                        :value="item.id">
                        </el-option>
                    </el-select>
                </p>
            </div>

            <!-- 底部区域 -->
            <span slot="footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>
<script>
export default {
    data(){
            //验证邮箱规则
            var checkEmail = (rule, value, cb)=>{
               //验证邮箱的正则表达式
                const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

                if(regEmail.test(value)){
                    //合法邮箱
                    return cb()
                }
                cb(new Error('请输入合法的邮箱'))
            }
            //验证手机号的规则
             var checkMobile = (rule, value, cb)=>{
        // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

                if(regMobile.test(value)){
                    //合法手机号
                    return cb()
                }
                cb(new Error('请输入合法的手机号'))
            }
     return{
            queryInfo:{
                //查询参数
                query:'',
                //当前页码
                pagenum:1,
                //每页显示条数
                pagesize:2
            },
            userList:[],
            total:0,

            //控制添加用户对话框的显示和隐藏
            addDialogVisible:false,

            //控制修改用户对话框的显示和隐藏
            editDialogVisible:false,

            // 添加用户的表单数据
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            

            //添加用户表单验证规则
            addFormRules:{
                username:[ 
                { required: true, message: '请输入用户名称', trigger: 'blur' },
                { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                ],
                password:[
                      { required: true, message: '请输入用户密码', trigger: 'blur' },
                { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                ],
                email:[
                     { required: true, message: '请输入用户邮箱', trigger: 'blur' },
                     { validator: checkEmail, trigger: 'blur' }
                ],
                mobile:[
                     { required: true, message: '请输入用户电话', trigger: 'blur' },
                      { validator: checkMobile, trigger: 'blur' }
                ]
            },
            
            //修改用户表单数据
            editForm:{},
            
            //分配角色对话框 显示和隐藏
            setRoleDialogVisible:false,

            //需要被分配角色的用户信息
            userInfo:{},

            //所有角色的数据列表
            rolesList:[],

            //当前选中的角色id
            selectedRoleId:"",
            
            //验证修改用户表单规则
            editFormRules:{
                email:[
                     { required: true, message: '请输入用户邮箱', trigger: 'blur' },
                     { validator: checkEmail, trigger: 'blur' }
                ],
                mobile:[
                    { required: true, message: '请输入用户电话', trigger: 'blur' },
                      { validator: checkMobile, trigger: 'blur' }
                ]
            }
        }
    },
    created(){
        //刷新页面直接给data添加数据
        this.getUserList()
    },
    methods:{
        async getUserList(){
            const {data:res} = await this.$http.get('/users',{
               params :this.queryInfo
            });
        //   console.log(res);  
          if(res.meta.status!=200) return this.$message.error('获取用户列表失败');
            this.userList = res.data.users;
            this.total = res.data.total;
            // console.log(this.userList);
            // console.log(this.total);    
        },
        handleSizeChange(newSize){
            this.queryInfo.pagesize =  newSize;
            this.getUserList()
        },
        handleCurrentChange(newCurrentPage){
             this.queryInfo.pagenum =  newCurrentPage;
            this.getUserList()
            
        },
        //监听switch开关状态的改变
            async userStatusChanged(userInfo){     
            const {data:res} = await this.$http.put(
                `users/${userInfo.id}/state/${userInfo.mg_state}`
                );
            if(res.meta.status !== 200) return this.$message.error('更新用户状态失败');
            this.$message.success('更新用户状态成功')
        },

        //监听添加用户对话框关闭事件
        addDialogClose(){
           this.$refs.addFormRef.resetFields()   
        },

        //点击确定按钮添加新用户
        addUser(){
            this.$refs.addFormRef.validate(async valid=>{
                if(!valid) return
            //可以发起添加用户的网络请求
          const {data:res} = await this.$http.post('users',this.addForm)
        //判断用户是否创建成功
        if(res.meta.status !== 201) return this.$message.error('用户创建失败')
        this.$message.success('用户创建成功')
        //关闭对话框窗口
        this.addDialogVisible = false
        //刷新数据
        this.getUserList()
            })
        },
        //展示编辑用户对话框
        async showEditDialog(id){
        this.editDialogVisible = true;
        const {data:res} = await this.$http.get(`users/${id}`)
        //   console.log(res.data);
        this.editForm = res.data;
        },
        //关闭修改对话框清空事件
        editDialogClose(){
            this.$refs.editFormRef.resetFields()
        },
        //修改对话框确定按钮数据的预验证
        eidtUserInfo(){
            this.$refs.editFormRef.validate(async valid=>{
               if(!valid) return;
            //发起修改数据地址请求
         const {data:res}  = await this.$http.put('users/' + this.editForm.id,{
                email:this.editForm.email,
                mobile:this.editForm.mobile
            })
            
            if(res.meta.status !== 200) return this.$message.error('用户修改数据失败')

            //关闭对话框
            this.editDialogVisible = false;
            //重新加载数据
            this.getUserList();
            //提示用户修改数据成功
            this.$message.success('修改成功')
            })
        },
        //根据id删除对应的数据
        async removeUserById(id){
            // console.log(id);
            const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(error => error)
            // console.log(confirmResult);
            //如果用户确认删除，则返回值为confirm字符串
            //如果用户确认删除，则返回值为 cancel字符串
            if(confirmResult == "cancel") return this.$message('取消数据修改')
            // console.log("确认了删除"); 
            const {data:res} = await this.$http.delete('users/' + id);
            if(res.meta.status !== 200){
                return this.$message.error('用户删除失败');
            } 
            this.$message.success('用户删除成功')
            this.getUserList() 
            
        },
        //点击按钮 展示分配角色对话框
        async setRole(userInfo){
            this.userInfo = userInfo

            //在展示对话框之前，获取所有角色的列表
            const {data:res} = await this.$http.get('roles')
            if(res.meta.status !==200) return this.$message.error('获取用户列表失败!');
            this.rolesList = res.data
            this.setRoleDialogVisible = true;
        },
        //点击确定按钮  分配角色
        async saveRoleInfo(userInfo){
            
            
            if(!this.selectedRoleId) return this.$message.error('请选择要分配的角色！')

            const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
            

            if(res.meta.status !== 200){
                return this.$message.error('更新角色失败！')
            }
            this.$message.success('更新角色成功！');
            this.getUserList();
            this.setRoleDialogVisible = false;
                    
        },
          //监听关闭 分配角色对话框
        setDialogVisibleClosed(){
            //当前选中的角色清空
            this.selectedRoleId = '';
            //需要被分配角色的信息清空
            this.userInfo = {}
        },
    }
}
</script>
<style lang="less" scoped>
    
</style>